22 Creedmore for Coyotes
- Thread starter Knifeman
- Start date
I've got several rifles for coyotes when the wind is up. I never use them, I always use the regular light wind rifle.
Decent idea, but the reality is, shoot what you are comfortable with.
Decent idea, but the reality is, shoot what you are comfortable with.
You can never have too many coyote rifles. I say build it, and let
us know how it works out!
Paul
us know how it works out!
Paul
urbanrifleman
Site $$ Sponsor
I really think that a 6 Creedmore in zero FB might be the poo. Make it a 1-10 or 1-12 twist and shoot from 55 grain to 80 grain bullets. You should get well over 4000 fps for the 55 grain.
Mark W
Gold $$ Contributor
The smith that chambered my 22-243ai tried hard to sell me on a 22 Creedmoor. He made some really good points but I just couldn’t jump on the Creedmoor bandwagon just yet. Sounds like it would make a fine coyote round that would fall somewhere between a 22-250ai and a 22-243ai.
I have the 80.5 bergers running 3393gps from a 22" 8tw Rock. It's an absolute hammer on coyotes. I have gotten some excellent reports on the new Hornady 88gn ELDM's as well. It's by far my preferred rifle for anything here in Oklahoma, including whitetails and hogs.
urbanrifleman
Site $$ Sponsor
I don't understand why a 22 Creedmore would be better than a 6 CM. You could use a shorter FB (say 60 thou) use a 12 twist and shoot the 80 grain Bergers or Blitz and absolutely shoot some small groups even out to 500-600 yards and the Sierra BLitz blows up like a hand grenade.
https://www.midwayusa.com/product/1...r-80-grain-spitzer-boat-tail-blitz-box-of-100
Or you could shoot the Nosler 80.
https://www.midwayusa.com/product/3...iameter-80-grain-spitzer-boat-tail-box-of-100
Heck you could shoot all the way down to 55 grain Varmageddon and be well over 4000 fps. Probably be a lot easier on the barrel.
https://www.midwayusa.com/product/1...r-80-grain-spitzer-boat-tail-blitz-box-of-100
Or you could shoot the Nosler 80.
https://www.midwayusa.com/product/3...iameter-80-grain-spitzer-boat-tail-box-of-100
Heck you could shoot all the way down to 55 grain Varmageddon and be well over 4000 fps. Probably be a lot easier on the barrel.
Last edited:
pirate ammo
Guaranteed to take the wind out of their sails
its all the creedmore craze,,
urbanrifleman
Site $$ Sponsor
its all the creedmore craze,,
I was just saying I do not understand what is gained going down to 22 from 6mm in Creedmore for the purposes of varmint hunting.
pirate ammo
Guaranteed to take the wind out of their sails
I know ,, I just couldn't help myself,,thinking about a 28 Nosler right now,,go figure,,
And give your FN.I know ,, I just couldn't help myself,,thinking about a 28 Nosler right now,,go figure,,
pirate ammo
Guaranteed to take the wind out of their sails
no,no,no,,pig killer from you know where,,12 pigs in a pack,,move selector and SWEEP,,less pigs,,
Mark W
Gold $$ Contributor
The 22 with same weight projectile will shoot flatter with a better mpbr. Probably not worth the extra barrel wear for colony varmints but it sure comes in handy for predators.
It's no better on anything or for anything. You'll get better ballistics from the 22 Creed vs the 6 Creed using the same weight bullets simply due to the ballistic superiority of the heavier 224 bullets. Just drop and drift will be less. Accuracy may or may not be any different. Both will flatten a yote just fine out to longer than average ranges.
This is exactly backwards. Given the same case volume and equal peak pressure/pressure curve, the 6mm will drive the same weight bullet faster, increasing maximum point blank range (MPBR) relative to a .22. The increased muzzle velocity for the 6mm is simple physics -- the same pressure pushing on a larger bullet base area (18% more area in the case of 0.243 vs. 0.224) produces more force, hence more acceleration on the same mass of bullet. The key point is that inside 500 yards, where 99+% of predators are shot, muzzle velocity rules in terms of bullet drop (MPBR), and BC matters very little. Some experimentation with a ballistics calculator will confirm this.
Usually the 6mm bullet will have a lower BC relative to the same weight bullet in a .22, and so will deflect more in the wind at all ranges and -- eventually -- drop more at ranges greater than 500 yards or so. There are important exceptions, though, for coyote hunters. For instance, the BC1 of the 55gr Nosler Ballistic Tip is: 6mm=0.276, .22=0.267. Using 55gr NBTs the 6mm Creedmoor will outperform the 22 Creedmoor in terms of both MPBR and wind deflection at any distance.
If you routinely hunt coyotes in strong winds there is an argument for using high-BC bullets, but you will always be giving up MPBR to get the reduced wind deflection that heavy-for-caliber bullets provide, unless you go to a much bigger case capacity to recover the lost muzzle velocity. Bigger cases mean more recoil and shorter barrel life, although neither of those may matter much to the average coyote hunter.
Attached is a spreadsheet showing some popular lightweight coyote hunting bullets in various calibers, along with their MPBR (maximum rise above line-of-sight = 1.5") at various muzzle velocities, along with typical cartridges capable of producing those velocities. There are some other data of potential interest, as well (e.g., zero range, recoil energy, barrel life).
Based on my analysis of the attached spreadsheet, I use a 22BR with 40gr NBTs for called coyotes. 95% of the coyotes I have killed were within 250 yards, and way more than half were within 100 yards. I don't have time to use a rangefinder on called coyotes, and I don't call if the wind is anything more than a light breeze, so MPBR is much more important to me than wind deflection. I want to be able to point and shoot without having to estimate range. Light bullets (40gr) and light powder charges (32.9gr) produce minimal recoil even in a walking varminter, which also allows me to see my hits even on coyotes that are close, and to get back on target quickly for those doubles.
Mark W
Gold $$ Contributor
@Toby Bradshaw I was trying to say that the same weight 22 caliber bullet pushed at the same velocity would be flatter than the 6mm. Admittedly I didn’t put much thought into the what it would take to reach the velocity. My 22-243ai shoots a 75 Amax faster and flatter than my straight 243 shoots a 75 Vmax. I guess the extra capacity makes that an apples to oranges comparison.
I’ll check out your spreadsheet when I get settled in this evening. Thanks for setting me straight!
I’ll check out your spreadsheet when I get settled in this evening. Thanks for setting me straight!
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